Table 2. Univariate analysis for overall survival in patients with glioblastoma multiforme.

Variables	2-year OS c (%)	p-value
Age (years)
≥65	23	0.920
<65	30
Maximal resection		0.037
Yes	34
No	15
KPS at diagnosis		0.014
KPS ≥70	26
KPS <70	14
RPA class		0.039
III	57
IV-V	19
Interval time to failure (months)		0.0001
≥9	45
<9	8
KPS at recurrence		0.300
≥60	25
<60	20
Salvage with metronomic TMZ		0.009
Yes	33
No	17